Improved detection of cardiac contusion with cardiac troponin I

Jesse E. Adams, Víctor G. Dávila-Román, Palmer Q. Bessey, David P. Blake, Jack H. Ladenson, Allan S. Jaffe

Research output: Contribution to journalArticlepeer-review

192 Scopus citations


Detecting cardiac injury in patients with chest trauma is difficult because the level of the MB isoenzyme of creatine kinase (MBCK) can be elevated from skeletal muscle injury alone. However, the level of cardiac troponin I (cTnI) is not elevated by skeletal muscle injury. To determine whether its measurement would improve the ability to detect cardiac inJury in patients with blunt chest trauma, 44 patients were studied. Serial echocardiograms and serial blood samples were obtained. Six patients had evidence of cardiac injury by echocardiography; all had elevations of MBCK and cTnI. One patient had elevations of both MBCK and cTnI with only a pericardial effusion. Twenty-six of the 37 patients without contusion had elevations of MBCK; none had elevations of cTnI. The ratio of MBCK to total creatine kinase improved specificity at the expense of sensitivity. Measurement of cTnI accurately detects cardiac injury in patients with blunt chest trauma and should facilitate the diagnosis and management of such patients.

Original languageEnglish (US)
Pages (from-to)308-312
Number of pages5
JournalAmerican heart journal
Issue number2
StatePublished - 1996

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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